发明名称 |
METHOD OF PREPARING ALPHA, BETA-DIFLUOROACRYLIC COMPOUNDS |
摘要 |
The invention relates to a method of preparing alpha , beta -difluoroacrylic acid and alpha , beta -alkyl difluoroacrylates. The inventive method consists in: preparing 2,3-difluoro-2,3-dichloropropanol (I) by radical telomerisation of CFCl=CFCl with CH3OH; oxidising (I) in order to obtain 2,3-difluoro-2,3-dichloropropanoic acid (II); and treating (II) with Zn in order to dechlorinate and, optionally, esterify the acid function before or after the dechlorination step. |
申请公布号 |
WO2004081169(A2) |
申请公布日期 |
2004.09.23 |
申请号 |
WO2004FR00482 |
申请日期 |
2004.03.02 |
申请人 |
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE;ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER;AMEDURI, BRUNO;BOUTEVIN, BERNARD;GUIOT, JEROME |
发明人 |
AMEDURI, BRUNO;BOUTEVIN, BERNARD;GUIOT, JEROME |
分类号 |
C07C51/27;C07C51/377;C07C67/14 |
主分类号 |
C07C51/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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